So I am running a Health/Wellness blog for few weeks now. Every 2-3 hours when I check to see comments, their they are: Shitty xanax, ambien, viagra spun comments. And their are SO SO many, its just frustrating to even put them to spam/trash one by one. Is there any way to protect blog against spam comments? How do you manage it? I am thinking of putting a captcha in it but I am not sure it can be done since the comments section is inbuilt in theme.